Conductor suspension apparatus



May 15, 1928. 1,669,719

J. R. MARSHALL CONDUCTOR SUS PENS ION APPARATUS Filed Oct. 5, 1925 extends over a Patented May 15, 1928.

*Jorrit n. Maa-sneu., or Mann-AN, PENNSYLVANIA.

CONDUCTOR SUSPENSION.- APPARATUS.

Application filedV October 5, 19215,. Serial` No. 66.1196.

This invention designed to improve the manner of. suspending electric conductors so 'that theysaine may be mounted andy raised "anch lowi-Jredv to their. pole supports without the necessity .the ylinemen climbing thc poles with the idea. of 4taicilitating the work` as to the installation and also to permit o suohl'operations with relation Ito rthe variation ot the, wires withhless danger and hanger trames.

1 marks the pole support which maybe of any type of support for carrying elec` tric c ondllCtors. A cross arm 2 is normally loose troni the pole but .is drawn. and held in place 'by straps, one at each side of the Pole. with. lingers .4 extending flonnvm'dlr from the 'tace of the cross arm.V The cross arin is raisedto Aposition, by a cable 5 which is secured to astiap 6' on the cross arm and pulley Z carriedy by a bracket 8` at thev top of the prole` the cable being;- secured one cleat Sa- Aon the pole. A downhaul loop 9 isarranged below the strap 6 so that sllxgnildt there be any ditlieulty in the downward movement of the cross `arm7` or it may be necessary to guide the cross arm to place,anjinstruinent niayibe placed in this loop for this purpose. With this construew tion the cross arm is raised and lowered at will from the base of the pole.

Line wires 10 and 11 are carried between the roller insulators 12, these insulators having the grooves 12a which. as the insulators are opposingly placed, form the openings 12b 'for the line wires. The insulators hare the trunnions 13 and the trunnions at the insides ot the insulators extend into slots 14 in uprights The uprights are secured between cross pieces 16 and 17 at the top and bottom of the frame respectively.' The outer trunnion of the lower insulators en tends into a` slot 1S on a post 19 secured between the cross pieces 17 and the trunnion on the outer side of the upper insulator eX- tends into a slot 2O in a block 21. rlhe block 2]. is secured to Athe block or post 19 by a. hinge 22 and through the action ofi this hingecau 'be swung'outwardly and this uncoi'ers the trunnion of the upper. insulator and permits the. reinoral ot this insulator and after the removal ot the top insulator the lower insulator may be moved upwardly. the trunnions 13 sliding' lin the slots 14T and 18A so that the lower insulator, may be removed. In this way the wires may be placed in the insulators, `the insulators in their sockets, and the socket piece 21`swung to position, thus locking` the insulators in place. In order to lo'lr theV piece 21 in its closed' position a sliding bolt 23 is gro'vided. This is sliding'ly carried under plates 24 on a block 24a arranged between the cross pieces 16. lYith the sliding plate orubolt in its lower. position and orerlappinc; the socket piece 21 this piece is prevented from moving outwardly and thus releasing the isulators. Locking catches Q5 are provided which may be swung'. over the bolt 23 to lock it in place.

A cable Q6 is secured between the cross pieces 16 and. extendsroycr a pulley 27' carried by brackets 28 on the upper side of the cross arm 2. The cable issecured by a cleat 29 in a convenient position toward the bottonr of thepole. In this way the wires may be placed inthe hanger traine and this drawn up to the cross arm, or lowered desired, byv means off the. cable L6. Guide lingers 16Lk entend` troni the cross arm over theV hanger and these are provided with shoulders 161` whiclrengagfe thecross pieces 16 as. thel cable 26 is drawn taut, thus seeiirelyrlo'oking theha'nger in place under the cross arm. i

A downward haul 30 is provided on the hanger being' suspended trom the cross picccs 17 and this facilitates the guiding of the hanger to place and by means ot an instrument from the ground! l In order to separate the line wires 1() and 11 a hanger similar to that used on the cross arm is threaded on to the line wires 10 and 11. This hanfrer is provided with a downhaul 30 and in every other respect is similar to the hanger used on the cross arm.

An alternative construction of hanger is shown in Fig'. 2 in which the wires are arranged, one above the other. In this there are top and bottom cross pieces 32 and 33 and an intermediate cross piece 34. An upright strip 35 is secured between these cross pieces and has the trunnions sockets 36.4

Rigid block or socket pieces 38 Carry the lower outer trunnions and hinged blocks 39 carry the upper trunnions; these `blocks being secured to the lower blocks by hinges lt). The hinged block is locked by a slide Llil in the same manner the slide 23. A cable #l2 extends over a pulley 43 carried by a strap 47,4 on the cross arm and extends downwardly so as to be conveniently secured to the post. lt will be readily seen that these hangers may be raised and-lowered, a wire removed or replaced, or where there is a wire brokenthe hangers may be lowered and the splicing made and the wires again drawn to place. rlhus the entire installation and maintenance or the line may be accomplished by the operation ot the lineinen trom the ground relieving the present dangers and also adding to the convenience with which they may be operated.

What l claim as new is l. Vin a conductor suspension apparatus, Ythe combination of a pole support; an insulating trame; line wire insulators mounted in the frame; line wires on the insulators extending each side of the insulators and= with slack; anda hoisting means leading from the support to the trame adapted to raise and lower the line wires at will.

2. ln a conductor suspension apparatus, the combination of a pole support; a cross arm; means for hoisting and lowering the crees arm relatively to the support; an inf sulator frame on the cross arm; line wire insulators on the traine; and line wires on the insulators extending each side oit the insulators and with slack.

8. In a conductor suspension apparatus;

the combination of a pole support; a cross arm; means tor hoisting and lowering the cross arm relatively to the support; an insulator tra-me on the cross arm; line wire insulators on the frame; line wires on the `insulators extending each side otl the insulators and with slack; and hoisting means leading from the cross arm to the insulator frame adapted to raise and lower the wires from the cross arm at will.

4. In a conductor suspension apparatus, the combination of a pole support; an insulator frame; line wire insulators on the frame; line wires niovably mounted on the insulators extending each sideA ot' the .insulators; and with slack; and a hoisting means leading from the support to the frame adapted to raise and lower the trame at will.

5. ln a conductor suspension apparatus; the combination ot apole support; an insulating frame; line wire insulators mounted in the frame; line'wires on the insulators extending each side of the insulators, and with slack; a hoisting means leading from the support to the trame adapted to raise and lower the line wires at will; and a spreader on the line wires between the supports.

6. In a conductor suspension apparatus, the combination oit a pole support; an insulating frame; line wire insulators mounted in the frame; line wires on the vinsulators extending each side ot the insulators, and with sla-ck; a hoisting means leading from the support to the frame adapted to raise and lower the line wires at will; and a spreader on the line wires between the supports comprising insulators on which the wires are movably mounted.

7. ln a conductor suspension apparatus,

the combination ot a pole support; an in` sulating trame; line wire insulators mount ed in the trame; line wires on the insulators extending each side ot the insulators, and with slack; a hoisting means leading from the support to the trame adapted to raise and lower the line wires at will; and a spreader on the line wires between the supports comprising roller insulators on which the wires are movably mounted. f f In testimony whereof l have hereunto set my hand.

JGHN R. MARSHALL. 

